Solve the following quadratic equation by factorisaton solutions
(1) x2 - 15 x + 54 =0
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x2 -15+ 54=0
ans..
x2 - 9x - 6x + 54 =0
= x(x - 9) - 6(x - 9) =0
= ( x -9 ) yaa ( x - 6) =0
= x - 9 = 0 / x - 6 =0
x = 9 / x = 6
x = 9,6
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